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feat: add thread-safe access to CountingWriter byte total #22620

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merged 1 commit into from
Oct 4, 2021
Merged

feat: add thread-safe access to CountingWriter byte total #22620

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7 changes: 6 additions & 1 deletion cmd/influxd/backup_util/backup_util.go
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import (
"path/filepath"
"sort"
"strings"
"sync/atomic"

"github.com/gogo/protobuf/proto"
internal "github.com/influxdata/influxdb/cmd/influxd/backup_util/internal"
Expand Down Expand Up @@ -209,10 +210,14 @@ type CountingWriter struct {

func (w *CountingWriter) Write(p []byte) (n int, err error) {
n, err = w.Writer.Write(p)
w.Total += int64(n)
atomic.AddInt64(&w.Total, int64(n))
return
}

func (w *CountingWriter) BytesWritten() int64 {
return atomic.LoadInt64(&w.Total)
}

// retentionAndShardFromPath will take the shard relative path and split it into the
// retention policy name and shard ID. The first part of the path should be the database name.
func DBRetentionAndShardFromPath(path string) (db, retention, shard string, err error) {
Expand Down